This is false information. Quite a number of the other private CoH servers do have the "enterbasefrompasscode" commandline active.
Don't believe it? Check out my public SG bases on Unity and Thunderspy:
Unity: /enterbasefrompasscode TEST-150
Thunderspy: /enterbasefrompasscode OLDSCHOOL-257
Thunderspy, for instance, had a major revamp of the entire game code a couple of months ago, and reverted the SG base system back to Issue 11 (eleven!!). The SG bases thusly look outdated over there. Yet, Thunderspy used common sense, and kept the "enterbasefrompasscode" commandline.
